Joshua Commissioned as Moses' Successor

311 Moses went and spoke these words to all Israel. 2 He said to them, “I am one hundred twenty years old this day; I can no more go out and come in: and Yahweh has said to me, ‘You shall not go over this Jordan.’ 3 Yahweh your God, he will go over before you; he will destroy these nations from before you, and you shall dispossess them: and Joshua, he shall go over before you, as Yahweh has spoken. 4 Yahweh will do to them as he did to Sihon and to Og, the kings of the Amorites, and to their land; whom he destroyed. 5 Yahweh will deliver them up before you, and you shall do to them according to all the commandment which I have commanded you. 6 Be strong and of good courage, don’t be afraid, nor be scared of them: for Yahweh your God, he it is who does go with you; he will not fail you, nor forsake you.”

Matthew Henry's Commentary on Deuteronomy 31:1-6

Commentary on Deuteronomy 31:1-8

(Read Deuteronomy 31:1-8)

Moses assures Israel of the constant presence of God with them. This is applied by the apostle to all God's spiritual Israel, to encourage their faith and hope; unto us is this gospel preached, as well as unto them; he will never fail thee, nor forsake thee, Hebrews 13:5. Moses commends Joshua to them for a leader; one whose wisdom, and courage, and affection they had long known; one whom God had appointed to be their leader; and therefore would own and bless. Joshua is well pleased to be admonished by Moses to be strong and of good courage. Those shall speed well, who have God with them; therefore they ought to be of good courage. Through God let us do valiantly, for through him we shall do victoriously; if we resist the devil, he will flee from us.